Bolting-up device



F. N. HALLETT.

BOLTING-UP DEVICE.

APPLICATION FILED 050.17, 1919. RENEWED FEB. 10, 1922.

1 ,420,4;24;, Patented June 20, 1922.

Ina/skier. I! N A al/ell.

FIRED N'. HALLETT, OF SEATTLE, WASHINGTON, ASSIGNOR TO THE CONSTRUCTION OFFICE.

APPLIANCE 00., A CORPORATION or WASHINGTON.

BOLTING-UP DEVICE.

To all whom it may concern:

Be it known that FRED N. HALLETT, a citizen of the United States, residing at Seattle, in the county of King and State of lVashington, has invented certain new and useful Improvements in Belting-Up Devices, of which the following is a specification.

This invention relates to an improved means for drawing plates or the like together and holding them in such position to permit further work thereon, as riveting them together.

The improved machine provides a means for exerting a direct drawing action upon one of such plates while the action is held relatively fixed, the device operating under fluid pressure and through the application of a wedge for such drawing action.

In the drawings:

Figure l is a plan of the machine shown as connected with the plates to be operated upon.

Figure 2 is a plan of the same.

The improved machine comprises a base 1, having uprights 2 and a table portion 3.

The table 3 is formed With spaced openings 4, to receive rod portions 5 of a pullframe 6. The upper ends of the rods 5 are connected by a cross-bar 7, and their lower ends pivotally support opposing clutch jaws 8, held normally closed by a spring 9, and formed on their proximate faces with notches 10.

Supporting rollers 11 are mounted in line on the table adjacent the openings 4, and a similar roller 12 is carried by the pullframe cross-bar 7, the arrangement being such that the rollers 11 and 12 are in the same vertical plane.

A cylinder 13 is supported adjacent the table, and the piston therein operated in either direction as desired, by fluid pressure such as air under pressure delivered througeither of two supply pipes 14 and l5.- The piston 16 in said cylinder has its rod 17 formed with a wedge terminal 18, and this wedge is adapted to bear in movement between the rollers 11 and 12 as will be evident.

A pin 19 is adapted to be passed through aligned openings 20 in the plates to be drawn together, as 21, 22, and headed or otherwise held against withdrawal movement. The upper end of the pin is headed at 23, for cooperation with the clutch jaws 8. The

Specification of Letters Patent. Patgntgd June 1922, Application filed December 17, 1919, Serial No. 345,574. Renewed February 10, 1922.

Serial No. 535,617.

respective uprights 2 are preferably of unequal lengths so as to provide bearing for the base on the respective plates as they are drawn into position.

With the parts assembled'as described, it is evident that movement of the wedge 18 in one direction, will force the pull frame upwardly and draw plates 21, 22 together. ey may be held in this position by the wedge until the contemplated work is completed, when reverse movement of the wedge ing a base, a pull-frame movable therein,'

clutch jaws carried by the pull-frame, and a wedge for operating the pull-frame and fluid pressure means for operating said wedge.

3. A plate assembling machinecomprising a base formed with laterally extending legs, the base also being formed with open ings therein, a pair of rollers mounted on the base adjacent the openings, a pull-frame movable therein including a pair of'rods extending through said openings and connected at their upper ends by a cross-bar, opposing clutch jaws mounted on the lower ends of the rods, resilient means normally closing the jaws, a roller mounted on the cross-bar and in line with the first-mentioned rollers, a wedge adapted to engage the rollers for operating the pull-frame and fluid-pressure means for operating the wedge. j

4. A plate assembling machine comprising a base formed with laterally projecting legs, a pull-frame movable in the base formed with parallel rods adapted to slide in openings in the base, means carried by the rods to connect the pull-frame with a plate, a cross-bar connecting the rods, rollers mounted on the base, a roller mounted on the cross-bar and a wedge adapted to engage between the rollers for operatin the pullframe.

5. A plate assembling machine comprising a base formed with laterally projecting 5 legs, a pull-frame slidable in the base formed with parallel rods adapted to slide in openings in the base, clutch jaws carried by the rods, a cross-bar connecting the rods, rollers carried by the base, a roller mounted on the cross-bar, a wedge adapted to engage be- 10 tween the rollers and fluid-pressure means for operating the wedge and the pull-frame. In testimony whereof I aflix my signature.

FRED N. HALLETT. 

